Berlin 2014 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 27: Quantum gases: Bosons II
Q 27.8: Vortrag
Dienstag, 18. März 2014, 15:45–16:00, UDL HS2002
Kinetic frustration in shaken optical lattices — •Albert Verdeny1,2 and Florian Mintert1,2 — 1Freiburg Institute for Advanced Studies, Albert-Ludwigs-University, 79104 Freiburg, Germany — 2Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom
We investigate the impact of geometry on the effective Hamiltonian of shaken lattices. In specific geometries like the hexagonal or kagome lattice, new next-nearest-neighbor tunneling that is not present in the undriven Hamiltonian appears. We show how an appropriate choice of periodic driving can conveniently enhance or suppress these terms, which opens new possibilities for the study of frustration in such systems.